<template>
  <div class="login-container">
    <el-card class="box-card login-form">
      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginRules"
        class=""
        autocomplete="on"
        label-position="left"
      >
        <div class="title-container">
          <h3 class="title">
            {{ $t('login.title') }}
          </h3>
          <!-- <lang-select class="set-language" /> -->
        </div>
        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input
            ref="username"
            v-model="loginForm.username"
            :placeholder="$t('login.username')"
            name="username"
            type="text"
            tabindex="1"
            autocomplete="on"
          />
        </el-form-item>

        <el-tooltip
          v-model="capsTooltip"
          content="Caps lock is On"
          placement="right"
          manual
        >
          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input
              :key="passwordType"
              ref="password"
              v-model="loginForm.password"
              :type="passwordType"
              :placeholder="$t('login.password')"
              name="password"
              tabindex="2"
              autocomplete="on"
              @keyup.native="checkCapslock"
              @blur="capsTooltip = false"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon
                :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
              />
            </span>
          </el-form-item>
        </el-tooltip>

        <el-button
          :loading="loading"
          type="primary"
          style="width:100%;margin-bottom:30px;"
          @click.native.prevent="handleLogin"
        >
          {{ $t('login.logIn') }}
        </el-button>

        <!-- <div style="position:relative">
          <div class="tips">
            <span>{{ $t('login.username') }} : admin</span>
            <span>{{ $t('login.password') }} : {{ $t('login.any') }}</span>
          </div>
          <div class="tips">
            <span style="margin-right:18px;">
              {{ $t('login.username') }} : editor
            </span>
            <span>{{ $t('login.password') }} : {{ $t('login.any') }}</span>
          </div>

          <el-button class="thirdparty-button" type="primary" @click="showDialog=true">
            {{ $t('login.thirdparty') }}
          </el-button>
        </div> -->
      </el-form>
    </el-card>
    <el-dialog :title="$t('login.thirdparty')" :visible.sync="showDialog">
      {{ $t('login.thirdpartyTips') }}
      <br />
      <br />
      <br />
      <social-sign />
    </el-dialog>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'
// import LangSelect from '@/components/LangSelect'
import SocialSign from './components/SocialSignin'
// import errGif from '@/assets/401_images/401.gif'

export default {
  name: 'Login',
  components: { SocialSign },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('Please enter the correct user name'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: 'admin999',
        password: 'admin999',
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validateUsername },
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword },
        ],
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      otherQuery: {},
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true,
    },
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && key >= 'A' && key <= 'Z'
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store
            .dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({
                path: this.redirect || '/',
                query: this.otherQuery,
              })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    },
    // afterQRScan() {
    //   if (e.key === 'x-admin-oauth-code') {
    //     const code = getQueryObject(e.newValue)
    //     const codeMap = {
    //       wechat: 'code',
    //       tencent: 'code'
    //     }
    //     const type = codeMap[this.auth_type]
    //     const codeName = code[type]
    //     if (codeName) {
    //       this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //       })
    //     } else {
    //       alert('第三方登录失败')
    //     }
    //   }
    // }
  },
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

body {
  /* background: url('../../assets/images/login-bg.jpg');
  background-size: cover; */
}

$bg: #283443;
$light_gray: #111;
$cursor: #111;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #f3f3f3;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background: url('../../assets/images/login-bg.jpg');
  background-size: cover;
  overflow: hidden;

  .login-form {
    position: fixed;
    width: 520px;
    max-width: 100%;
    padding: 30px 35px 0;
    margin: 0 auto;
    overflow: hidden;
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 10px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      // color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    .set-language {
      color: #fff;
      position: absolute;
      top: 3px;
      font-size: 18px;
      right: 0px;
      cursor: pointer;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
